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U.S. ZIP Codes Database 2026

Search by ZIP code, city, county, or state and find clear postal details with maps, time zones, and area code data.

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Austin County ZIP Codes

Browse all ZIP Codes, cities, and associated area codes registered in Austin County.

County State ZIP Code City Area Codes
Austin County TX 77418 Bellville 281, 346, 713, 832, 979
Austin County TX 77452 Kenney 979
Austin County TX 77473 San Felipe 979
Austin County TX 77474 Sealy 281, 346, 713, 832, 979
Austin County TX 77485 Wallis 281, 346, 713, 832, 979
Austin County TX 78931 Bleiblerville 979
Austin County TX 78933 Cat Spring 979
Austin County TX 78944 Industry 979
Austin County TX 78950 New Ulm 979

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About U.S. ZIP Codes

ZIP codes are a United States Postal Service system introduced in 1963 to make mail routing more accurate and efficient. The standard format uses five digits, while ZIP+4 adds four more digits for a more precise delivery segment.

ZIP codes cover the United States, its territories, military mail routes, and other USPS delivery points. This directory organizes that data for practical lookup by ZIP code, city, county, and state.